CN-224213383-U - Waterproof structure of new and old connection structure of reverse construction method

CN224213383UCN 224213383 UCN224213383 UCN 224213383UCN-224213383-U

Abstract

The application relates to a waterproof structure of a reverse construction method new and old connection structure, which comprises a ground continuous wall, a bottom plate connected with the ground continuous wall and a waterproof strip arranged between the ground continuous wall and the bottom plate for pre-waterproofing and infiltration, wherein the waterproof strip comprises a long steel plate fixed on the ground continuous wall in advance and a waterproof steel plate welded and fixed on the long steel plate, the long steel plate is positioned at the joint of the ground continuous wall and the bottom plate, the waterproof steel plate is positioned at one side of the long steel plate close to the bottom plate, and the waterproof steel plate is embedded in the bottom plate. The waterstop strip that the waterstop steel sheet and long steel sheet set up between diaphragm wall and bottom plate forms can effectually prevent infiltration to the basement in the waterproof, has realized the waterproof function of basement.

Inventors

YU GUANGZHOU
SUN HAIWEI
GAO FENFEN
HUANG YAJUN
ZHU JIE
MEI XIAOFENG
QI JIAN
WANG QIANG
LIU YUQUAN
MA XIAOTING

Assignees

中建三局集团(浙江)有限公司
江苏华东工程设计有限公司
中建三局第三建设工程有限责任公司

Dates

Publication Date: 20260508
Application Date: 20250419

Claims (10)

1. The waterproof structure of the reverse construction method new and old connection structure is characterized by comprising a ground connection wall (1), a bottom plate (2) connected with the ground connection wall (1) and a waterproof strip (4) arranged between the ground connection wall (1) and the bottom plate (2) and capable of preventing water from penetrating inwards, wherein the waterproof strip (4) comprises a long steel plate (42) fixed on the ground connection wall (1) in advance and a waterproof steel plate (43) fixed on the long steel plate (42) in a welding mode, the long steel plate (42) is located at the joint of the ground connection wall (1) and the bottom plate (2), the waterproof steel plate (43) is arranged along the length direction of the joint surface of the bottom plate (2) and the ground connection wall (1), the waterproof steel plate (43) is located on one side, close to the bottom plate (2), of the long steel plate (42), and the waterproof steel plate (43) is pre-buried in the bottom plate (2).
2. The waterproof structure of a reverse construction method old and new connection structure according to claim 1, wherein the water-stop steel plate (43) is perpendicular to the long steel plate (42), and the water-stop steel plate (43) is fixed on the long steel plate (42) by full-welding.
3. The waterproof structure of a reverse construction method old and new connection structure according to claim 2, wherein the width of the water stop steel plate (43) is set to 400-600 mm.
4. The waterproof structure of the reverse construction method new and old connection structure according to claim 2 is characterized in that tooth grooves (3) are formed in the joint surface of the ground connecting wall (1) and the bottom plate (2), the tooth grooves (3) are arranged along the length direction of the joint surface of the bottom plate (2) and the ground connecting wall (1), and the long steel plates (42) are located in the tooth grooves (3) and are arranged along the length direction of the tooth grooves (3).
5. The waterproof structure of the reverse construction method new and old connection structure according to claim 4, wherein the water stop (4) further comprises anchor bolts (41), the anchor bolts (41) are fixed on one side, far away from the bottom plate (2), of the long steel plate (42), the anchor bolts (41) are embedded in the ground connection wall (1), the anchor bolts (41) are perpendicular to the long steel plate (42), and a plurality of anchor bolts (41) are arranged.
6. The waterproof structure of a reverse construction method old and new connection structure according to claim 5, wherein the anchors (41) are provided in two rows along the vertical direction, each row of anchors (41) is uniformly provided in plurality along the length direction of the tooth slot (3), and the interval between adjacent anchors (41) in the same row is set to be 500mm.
7. The waterproof structure of the reverse construction method new and old connection structure according to claim 1 is characterized by further comprising grouting pipes (5) pre-buried in the bottom plate (2), one ends of the grouting pipes (5) are located at the joint surface of the ground continuous wall (1) and the bottom plate (2), one ends of the grouting pipes (5) far away from the ground continuous wall (1) penetrate out of the bottom plate (2), and the grouting pipes (5) are arranged in a plurality along the length direction of the joint surface of the bottom plate (2) and the ground continuous wall (1).
8. The waterproof structure of the reverse construction method new and old connection structure according to claim 7 is characterized by further comprising grouting pipes (6) embedded in the bottom plate (2), wherein the grouting pipes (6) are arranged along the length direction of a joint surface of the bottom plate (2) and the ground connection wall (1), one side, close to the ground connection wall (1), of each grouting pipe (6) is provided with a plurality of grouting openings, the grouting openings are uniformly arranged along the length direction of the grouting pipe (6), the distance between two adjacent grouting openings is 200-300 mm, one end, close to the ground connection wall (1), of each grouting pipe (5) is communicated with the grouting pipe (6), and the distance between two adjacent grouting pipes (5) is 5-6 m.
9. The waterproof structure of a new and old connection structure according to claim 1, further comprising a water-swelling water-stop glue (7), wherein the water-swelling water-stop glue (7) is located at the joint of the ground continuous wall (1) and the bottom plate (2) and is embedded in the bottom plate (2), and the water-swelling water-stop glue (7) is arranged along the length direction of the joint surface of the bottom plate (2) and the ground continuous wall (1).
10. The waterproof structure of a reverse construction method old and new connection structure according to claim 1, wherein the surface of the ground connecting wall (1) close to the bottom plate (2) is an uneven rough surface formed by roughening.

Description

Waterproof structure of new and old connection structure of reverse construction method Technical Field The application relates to the technical field of building construction, in particular to a waterproof structure of a reverse construction method old and new connection structure. Background Currently, basements are an important building component, and the waterproof problem is directly related to the structural safety of the building. Once the basement has leakage, the foundation soil can lose the supporting effect, which causes serious consequences such as sinking and tilting of the building. The basement bottom plate is poured after the diaphragm wall is poured, and the joint between the diaphragm wall poured first and the basement bottom plate poured later is the main cause of water leakage of the basement, so that the water resistance of the joint between the diaphragm wall and the basement bottom plate needs to be considered. Therefore, the application provides a waterproof structure for realizing the waterproof function between the new and old connection structures by the reverse construction method. Disclosure of utility model In order to ensure that the joint between the floor connecting wall which is cast firstly and the basement bottom plate which is cast later has a reliable waterproof function when the basement is constructed by using the reverse construction method, the application provides a waterproof structure of a new and old connecting structure by using the reverse construction method. The application provides a waterproof structure of a reverse construction method new and old connection structure, which adopts the following technical scheme: The waterproof structure of the new and old connection structure of the reverse construction method comprises a ground continuous wall, a bottom plate connected with the ground continuous wall and a waterproof strip which is arranged between the ground continuous wall and the bottom plate and is pre-waterproof and internally infiltrated, wherein the waterproof strip comprises a long steel plate fixed on the ground continuous wall in advance and a waterproof steel plate welded and fixed on the long steel plate, the long steel plate is positioned at the joint of the ground continuous wall and the bottom plate, the waterproof steel plate is arranged along the length direction of the joint surface of the bottom plate and the ground continuous wall, the waterproof steel plate is positioned at one side of the long steel plate close to the bottom plate, and the waterproof steel plate is pre-buried in the bottom plate. Through adopting above-mentioned technical scheme, stagnant water steel sheet and long steel sheet setting form the separation structure between diaphragm wall and bottom plate, when direct separation oozes under water, still prolonged sealed face's effective seal length greatly, can effectually prevent infiltration to the basement in the waterproof, improved the waterproof function of basement. Preferably, the water-stopping steel plate is perpendicular to the long steel plate, and the water-stopping steel plate is fixed on the long steel plate in a full-welded mode. By adopting the technical scheme, the water-stopping steel plate is perpendicular to the long steel plate, so that a good water-stopping effect is achieved, the water-stopping steel plate is fixed on the long steel plate in a full-welded mode, the connection strength between the water-stopping steel plate and the long steel plate is further enhanced, and meanwhile, good sealing performance is achieved between the water-stopping steel plate and the long steel plate. Preferably, the width of the water stop steel plate is set to 400-600 mm. Through adopting above-mentioned technical scheme, stagnant water steel sheet width sets up to 400~600mm, has enlarged the range that the waterstop separation oozes under water, has strengthened the water-proof effects of waterstop. Preferably, the joint surface of the ground continuous wall and the bottom plate is provided with tooth grooves, the tooth grooves are arranged along the length direction of the joint surface of the bottom plate and the ground continuous wall, and the long steel plates are positioned in the tooth grooves and are arranged along the length of the tooth grooves. By adopting the technical scheme, the tooth grooves are filled when the bottom plate is poured, and the tooth grooves can prolong the joint surface between the ground continuous wall and the bottom plate, so that the sealing performance between the ground continuous wall and the bottom plate is enhanced. Preferably, the water stop further comprises an anchor bolt, the anchor bolt is fixed on one side, far away from the bottom plate, of the long steel plate, the anchor bolt is embedded in the underground continuous wall, the anchor bolt is perpendicular to the long steel plate, and a plurality of anchor bolts are arranged. By adopting the technical scheme, the